ES8306691A1 - "procedimiento para isomerizar el contenido de xileno de una mezcla de carga de compuestos hidrocarbonados aromaticos". - Google Patents
"procedimiento para isomerizar el contenido de xileno de una mezcla de carga de compuestos hidrocarbonados aromaticos".Info
- Publication number
- ES8306691A1 ES8306691A1 ES509220A ES509220A ES8306691A1 ES 8306691 A1 ES8306691 A1 ES 8306691A1 ES 509220 A ES509220 A ES 509220A ES 509220 A ES509220 A ES 509220A ES 8306691 A1 ES8306691 A1 ES 8306691A1
- Authority
- ES
- Spain
- Prior art keywords
- ethylbenzene
- xylene isomerization
- catalyst
- isomerized
- xylenes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
- C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
- C07C5/2702—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously
- C07C5/2724—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously with metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/16—After treatment, characterised by the effect to be obtained to increase the Si/Al ratio; Dealumination
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/30—After treatment, characterised by the means used
- B01J2229/36—Steaming
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
PROCEDIMIENTO PARA ISOMERIZAR EL CONTENIDO DE XILENO DE UNA MEZCLA DE CARGA DE COMPUESTOS HIDROCARBONADOS AROMATICOS QUE TIENEN 8 ATOMOS DE CARBONO. SE ISOMERIZA LA MEZCLA QUE CONTIENE XILENOS Y ETILBENCENO POR CONTACTO, EN CONDICIONES DE CONVERSION, DE ESTA Y DE HIDROGENO CON UN CATALIZADOR QUE COMPRENDE UN COMPONENTE DE HIDROGENACION Y UNA ZEOLITA CRISTALINA QUE TIENE UNA PROPORCION DE SILICE/ALUMINA MAYOR DE 12 Y UN INDICE DE IMPEDIMENTO DE 1 A 12, MANTENIENDO UNA TEMPERATURA DE CONVERSION DE 288 A 427 C. EL CATALIZADOR SE TRATA PREVIAMENTE CON VAPOR DE AGUA PARA REGULAR SU ACTIVIDAD ACIDA A UN VALOR ALFA MEDIDO DE 45 A 110 Y EL CONTACTO SE REALIZA A UNA VELOCIDAD ESPACIAL TAL QUE PRODUZCA UN CONTENIDO EN PARA-XILENO DE LOS XILENOS DE POR LO MENOS EL 98% DEL NECESARIO PARA EL EQUILIBRIO TERMODINAMICO Y UN PORCENTAJE DEL 10 A 60% DE CONVERSION DEL CONTENIDO INICIAL DE ETILBENCENO. EL PARA-XILENO SE EMPLEA PARA OBTENER ACIDO TEREFTALICO UTILIZABLE EN LA FABRICACION DE POLIESTERE S.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23091681A | 1981-02-02 | 1981-02-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES509220A0 ES509220A0 (es) | 1983-06-01 |
ES8306691A1 true ES8306691A1 (es) | 1983-06-01 |
Family
ID=22867070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES509220A Expired ES8306691A1 (es) | 1981-02-02 | 1982-02-01 | "procedimiento para isomerizar el contenido de xileno de una mezcla de carga de compuestos hidrocarbonados aromaticos". |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0057607B1 (es) |
JP (1) | JPS57150624A (es) |
AR (1) | AR242372A1 (es) |
AU (1) | AU550371B2 (es) |
BR (1) | BR8200535A (es) |
CA (1) | CA1175075A (es) |
DD (1) | DD202137A5 (es) |
DE (1) | DE3260614D1 (es) |
ES (1) | ES8306691A1 (es) |
IN (1) | IN155556B (es) |
MX (1) | MX159111A (es) |
PL (1) | PL235046A1 (es) |
ZA (1) | ZA82671B (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0102716B1 (en) * | 1982-09-01 | 1986-09-10 | Mobil Oil Corporation | A process for isomerizing xylenes |
EP0369078B1 (en) * | 1988-11-16 | 1993-07-28 | Indian Petrochemicals Corporation Ltd. | Process for producing p-xylene and o-xylene |
CA2032082A1 (en) * | 1989-12-18 | 1991-06-19 | Werner O. Haag | Xylene isomerization process |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3856874A (en) * | 1973-09-13 | 1974-12-24 | Mobil Oil Corp | Xylene isomerization |
US4101595A (en) * | 1977-05-02 | 1978-07-18 | Mobil Oil Corporation | Conversion of ethyl benzene to para xylene |
US4224141A (en) * | 1979-05-21 | 1980-09-23 | Mobil Oil Corporation | Manufacture of aromatic compounds |
US4236996A (en) * | 1979-05-25 | 1980-12-02 | Mobil Oil Corporation | Xylene isomerization |
-
1982
- 1982-01-25 AU AU79814/82A patent/AU550371B2/en not_active Ceased
- 1982-01-27 CA CA000395062A patent/CA1175075A/en not_active Expired
- 1982-02-01 EP EP82300503A patent/EP0057607B1/en not_active Expired
- 1982-02-01 BR BR8200535A patent/BR8200535A/pt unknown
- 1982-02-01 DE DE8282300503T patent/DE3260614D1/de not_active Expired
- 1982-02-01 ES ES509220A patent/ES8306691A1/es not_active Expired
- 1982-02-02 MX MX82191222A patent/MX159111A/es unknown
- 1982-02-02 AR AR82288329A patent/AR242372A1/es active
- 1982-02-02 IN IN127/CAL/82A patent/IN155556B/en unknown
- 1982-02-02 DD DD82237137A patent/DD202137A5/de unknown
- 1982-02-02 ZA ZA82671A patent/ZA82671B/xx unknown
- 1982-02-02 JP JP57014409A patent/JPS57150624A/ja active Granted
- 1982-02-12 PL PL23504682A patent/PL235046A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE3260614D1 (en) | 1984-10-04 |
AU550371B2 (en) | 1986-03-20 |
EP0057607A1 (en) | 1982-08-11 |
MX159111A (es) | 1989-04-21 |
ES509220A0 (es) | 1983-06-01 |
IN155556B (es) | 1985-02-16 |
DD202137A5 (de) | 1983-08-31 |
ZA82671B (en) | 1983-09-28 |
PL235046A1 (es) | 1982-10-11 |
CA1175075A (en) | 1984-09-25 |
AR242372A1 (es) | 1993-03-31 |
EP0057607B1 (en) | 1984-08-29 |
JPS57150624A (en) | 1982-09-17 |
BR8200535A (pt) | 1982-12-07 |
AU7981482A (en) | 1982-09-23 |
JPS614818B2 (es) | 1986-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20011110 |